Benficiary organisation details
Main Beneficiary
Dukovany NPP (Czech Republic)
www.cez.cz
Co-Beneficiary
Bohunice NPP (Slovak Republic)
www.seas.sk
Project Aims

• Evaluate the equipment and the operating procedures to preclude accumulation of non-condensable gases in the primary system of VVER reactors;
• Help the Beneficiary plants to develop their procedures for all operating modes to prevent and handle safety related problems caused by incondensable gases.

Project results

• Performance of detail analysis of chemical modes of operation of VVER 440/213 plant;
• Determination of non-condensable gases dissolved in the primary coolant at different operational states;
• Location of gas accumulation;
• Removing and processing of non-condensable gases;
• Evaluation of primary systems in a view of accumulation of gases without possibility of degassing during start up, power operation, shut down and abnormal events;
• Handling loss of natural circulation events;
• Proposals to improve existing equipment for venting;
• Assisting to the Beneficiary plant primary venting circuit procedures.

Further Project Results
Further information on the project results could be obtained from the beneficiary organisation.